/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 13:51:20,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 13:51:20,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 13:51:20,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 13:51:20,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 13:51:20,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 13:51:20,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 13:51:20,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 13:51:20,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 13:51:20,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 13:51:20,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 13:51:20,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 13:51:20,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 13:51:20,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 13:51:20,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 13:51:20,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 13:51:20,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 13:51:20,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 13:51:20,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 13:51:20,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 13:51:20,317 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 13:51:20,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 13:51:20,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 13:51:20,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 13:51:20,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 13:51:20,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 13:51:20,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 13:51:20,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 13:51:20,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 13:51:20,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 13:51:20,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-06 13:51:20,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 13:51:20,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 13:51:20,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 13:51:20,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 13:51:20,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 13:51:20,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 13:51:20,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 13:51:20,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 13:51:20,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 13:51:20,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 13:51:20,360 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 13:51:20,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 13:51:20,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 13:51:20,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 13:51:20,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 13:51:20,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 13:51:20,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 13:51:20,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:51:20,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 13:51:20,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 13:51:20,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 13:51:20,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 13:51:20,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 13:51:20,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 13:51:20,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 13:51:20,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 13:51:20,364 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 13:51:20,364 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 13:51:20,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 13:51:20,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 13:51:20,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 13:51:20,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 13:51:20,653 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 13:51:20,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-04-06 13:51:20,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e15bd6f/284d6e367ea14f2abdaee23619161828/FLAG6b03d4e11 [2022-04-06 13:51:21,279 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 13:51:21,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-04-06 13:51:21,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e15bd6f/284d6e367ea14f2abdaee23619161828/FLAG6b03d4e11 [2022-04-06 13:51:21,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e15bd6f/284d6e367ea14f2abdaee23619161828 [2022-04-06 13:51:21,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 13:51:21,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 13:51:21,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 13:51:21,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 13:51:21,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 13:51:21,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:51:21" (1/1) ... [2022-04-06 13:51:21,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e6cae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:21, skipping insertion in model container [2022-04-06 13:51:21,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:51:21" (1/1) ... [2022-04-06 13:51:21,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 13:51:21,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 13:51:22,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-04-06 13:51:22,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:51:22,244 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 13:51:22,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-04-06 13:51:22,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:51:22,390 INFO L208 MainTranslator]: Completed translation [2022-04-06 13:51:22,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22 WrapperNode [2022-04-06 13:51:22,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 13:51:22,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 13:51:22,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 13:51:22,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 13:51:22,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 13:51:22,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 13:51:22,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 13:51:22,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 13:51:22,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (1/1) ... [2022-04-06 13:51:22,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:51:22,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:51:22,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 13:51:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 13:51:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 13:51:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 13:51:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 13:51:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 13:51:22,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 13:51:22,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 13:51:22,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 13:51:22,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 13:51:22,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 13:51:22,587 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 13:51:22,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 13:51:22,587 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 13:51:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 13:51:22,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 13:51:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 13:51:22,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 13:51:22,779 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 13:51:22,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 13:51:23,694 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 13:51:24,236 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 13:51:24,237 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 13:51:24,248 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 13:51:24,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 13:51:24,255 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 13:51:24,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:51:24 BoogieIcfgContainer [2022-04-06 13:51:24,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 13:51:24,258 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 13:51:24,258 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 13:51:24,259 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 13:51:24,261 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:51:24" (1/1) ... [2022-04-06 13:51:24,263 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 13:51:24,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:51:24 BasicIcfg [2022-04-06 13:51:24,346 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 13:51:24,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 13:51:24,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 13:51:24,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 13:51:24,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 01:51:21" (1/4) ... [2022-04-06 13:51:24,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f67940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:51:24, skipping insertion in model container [2022-04-06 13:51:24,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:51:22" (2/4) ... [2022-04-06 13:51:24,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f67940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:51:24, skipping insertion in model container [2022-04-06 13:51:24,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:51:24" (3/4) ... [2022-04-06 13:51:24,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f67940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:51:24, skipping insertion in model container [2022-04-06 13:51:24,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:51:24" (4/4) ... [2022-04-06 13:51:24,356 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.cqvasr [2022-04-06 13:51:24,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 13:51:24,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 13:51:24,411 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 13:51:24,418 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 13:51:24,418 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 13:51:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 13:51:24,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-06 13:51:24,454 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:24,454 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:24,455 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:24,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:24,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1946519082, now seen corresponding path program 1 times [2022-04-06 13:51:24,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:24,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096461887] [2022-04-06 13:51:24,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:24,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:25,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:25,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:25,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096461887] [2022-04-06 13:51:25,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096461887] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:25,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:25,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:25,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148589162] [2022-04-06 13:51:25,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:25,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:25,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:25,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:25,065 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:27,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:28,417 INFO L93 Difference]: Finished difference Result 336 states and 564 transitions. [2022-04-06 13:51:28,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:28,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-06 13:51:28,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:28,428 INFO L225 Difference]: With dead ends: 336 [2022-04-06 13:51:28,428 INFO L226 Difference]: Without dead ends: 171 [2022-04-06 13:51:28,431 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:28,433 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:28,434 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-06 13:51:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-04-06 13:51:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-04-06 13:51:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-04-06 13:51:28,479 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-04-06 13:51:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:28,480 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-04-06 13:51:28,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-04-06 13:51:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 13:51:28,491 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:28,492 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:28,493 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 13:51:28,493 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:28,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:28,496 INFO L85 PathProgramCache]: Analyzing trace with hash 888216424, now seen corresponding path program 1 times [2022-04-06 13:51:28,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:28,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321052945] [2022-04-06 13:51:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:28,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:28,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:28,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:28,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321052945] [2022-04-06 13:51:28,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321052945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:28,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:28,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:28,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853429566] [2022-04-06 13:51:28,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:28,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:28,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:28,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:28,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:28,671 INFO L87 Difference]: Start difference. First operand 154 states and 236 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:31,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:33,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:34,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:34,268 INFO L93 Difference]: Finished difference Result 400 states and 618 transitions. [2022-04-06 13:51:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:34,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 13:51:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:34,271 INFO L225 Difference]: With dead ends: 400 [2022-04-06 13:51:34,271 INFO L226 Difference]: Without dead ends: 272 [2022-04-06 13:51:34,272 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:34,273 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:34,274 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 636 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:51:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-04-06 13:51:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 170. [2022-04-06 13:51:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5575757575757576) internal successors, (257), 165 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:34,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 261 transitions. [2022-04-06 13:51:34,286 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 261 transitions. Word has length 63 [2022-04-06 13:51:34,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:34,286 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 261 transitions. [2022-04-06 13:51:34,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:34,287 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 261 transitions. [2022-04-06 13:51:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 13:51:34,288 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:34,288 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:34,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 13:51:34,289 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1909217456, now seen corresponding path program 1 times [2022-04-06 13:51:34,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:34,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542539249] [2022-04-06 13:51:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:34,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:34,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542539249] [2022-04-06 13:51:34,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542539249] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:34,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:34,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:34,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689375365] [2022-04-06 13:51:34,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:34,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:34,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:34,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:34,440 INFO L87 Difference]: Start difference. First operand 170 states and 261 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:36,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:37,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:37,792 INFO L93 Difference]: Finished difference Result 431 states and 668 transitions. [2022-04-06 13:51:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:37,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 13:51:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:37,795 INFO L225 Difference]: With dead ends: 431 [2022-04-06 13:51:37,795 INFO L226 Difference]: Without dead ends: 287 [2022-04-06 13:51:37,796 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:37,797 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:37,797 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-06 13:51:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-04-06 13:51:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 181. [2022-04-06 13:51:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5397727272727273) internal successors, (271), 176 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 275 transitions. [2022-04-06 13:51:37,810 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 275 transitions. Word has length 64 [2022-04-06 13:51:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:37,810 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 275 transitions. [2022-04-06 13:51:37,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 275 transitions. [2022-04-06 13:51:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 13:51:37,811 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:37,812 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:37,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 13:51:37,812 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:37,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1031303024, now seen corresponding path program 1 times [2022-04-06 13:51:37,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:37,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73396564] [2022-04-06 13:51:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:37,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:38,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:38,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73396564] [2022-04-06 13:51:38,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73396564] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:38,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:38,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:38,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783614005] [2022-04-06 13:51:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:38,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:38,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:38,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:38,018 INFO L87 Difference]: Start difference. First operand 181 states and 275 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:39,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:41,790 INFO L93 Difference]: Finished difference Result 352 states and 534 transitions. [2022-04-06 13:51:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 13:51:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:41,792 INFO L225 Difference]: With dead ends: 352 [2022-04-06 13:51:41,792 INFO L226 Difference]: Without dead ends: 197 [2022-04-06 13:51:41,793 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:41,794 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 26 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:41,795 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 491 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 13:51:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-04-06 13:51:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-04-06 13:51:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5340909090909092) internal successors, (270), 176 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 274 transitions. [2022-04-06 13:51:41,812 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 274 transitions. Word has length 64 [2022-04-06 13:51:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:41,814 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 274 transitions. [2022-04-06 13:51:41,817 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:41,817 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 274 transitions. [2022-04-06 13:51:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 13:51:41,820 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:41,820 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:41,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 13:51:41,821 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1335121200, now seen corresponding path program 1 times [2022-04-06 13:51:41,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:41,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178159369] [2022-04-06 13:51:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:41,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:41,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:41,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:41,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178159369] [2022-04-06 13:51:41,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178159369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:41,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:41,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:41,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418773833] [2022-04-06 13:51:41,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:41,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:41,973 INFO L87 Difference]: Start difference. First operand 181 states and 274 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:43,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:44,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:44,447 INFO L93 Difference]: Finished difference Result 351 states and 532 transitions. [2022-04-06 13:51:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:44,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 13:51:44,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:44,449 INFO L225 Difference]: With dead ends: 351 [2022-04-06 13:51:44,449 INFO L226 Difference]: Without dead ends: 196 [2022-04-06 13:51:44,450 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:44,451 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:44,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 493 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:51:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-04-06 13:51:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 181. [2022-04-06 13:51:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5284090909090908) internal successors, (269), 176 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2022-04-06 13:51:44,460 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 64 [2022-04-06 13:51:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:44,460 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2022-04-06 13:51:44,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2022-04-06 13:51:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 13:51:44,461 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:44,461 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:44,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 13:51:44,461 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:44,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:44,462 INFO L85 PathProgramCache]: Analyzing trace with hash -25859152, now seen corresponding path program 1 times [2022-04-06 13:51:44,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:44,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94917125] [2022-04-06 13:51:44,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:44,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:44,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:44,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:44,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94917125] [2022-04-06 13:51:44,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94917125] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:44,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:44,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314607737] [2022-04-06 13:51:44,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:44,588 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:44,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:44,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:44,589 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:46,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:47,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:47,582 INFO L93 Difference]: Finished difference Result 442 states and 678 transitions. [2022-04-06 13:51:47,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:47,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 13:51:47,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:47,584 INFO L225 Difference]: With dead ends: 442 [2022-04-06 13:51:47,584 INFO L226 Difference]: Without dead ends: 287 [2022-04-06 13:51:47,584 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:47,586 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 143 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:47,587 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 13:51:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-04-06 13:51:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-04-06 13:51:47,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.532967032967033) internal successors, (279), 182 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:47,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 283 transitions. [2022-04-06 13:51:47,598 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 283 transitions. Word has length 64 [2022-04-06 13:51:47,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:47,599 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 283 transitions. [2022-04-06 13:51:47,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:47,599 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 283 transitions. [2022-04-06 13:51:47,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 13:51:47,600 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:47,600 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:47,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 13:51:47,601 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:47,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:47,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1757731560, now seen corresponding path program 1 times [2022-04-06 13:51:47,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:47,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902604400] [2022-04-06 13:51:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:47,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:47,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:47,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902604400] [2022-04-06 13:51:47,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902604400] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:47,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:47,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:47,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919563424] [2022-04-06 13:51:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:47,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:47,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:47,761 INFO L87 Difference]: Start difference. First operand 187 states and 283 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:48,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:50,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:53,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:54,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:54,944 INFO L93 Difference]: Finished difference Result 361 states and 550 transitions. [2022-04-06 13:51:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:54,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 13:51:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:54,946 INFO L225 Difference]: With dead ends: 361 [2022-04-06 13:51:54,946 INFO L226 Difference]: Without dead ends: 200 [2022-04-06 13:51:54,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:54,947 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:54,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 13:51:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-04-06 13:51:54,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-04-06 13:51:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-04-06 13:51:54,958 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 65 [2022-04-06 13:51:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:54,958 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-04-06 13:51:54,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-04-06 13:51:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:51:54,960 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:54,960 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:54,960 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 13:51:54,960 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:54,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2096002932, now seen corresponding path program 1 times [2022-04-06 13:51:54,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:54,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525930191] [2022-04-06 13:51:54,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:54,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:55,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:55,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:55,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525930191] [2022-04-06 13:51:55,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525930191] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:55,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:55,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:55,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22905357] [2022-04-06 13:51:55,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:55,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:55,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:55,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:55,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:55,098 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:57,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:59,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:00,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:01,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:02,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:02,359 INFO L93 Difference]: Finished difference Result 361 states and 549 transitions. [2022-04-06 13:52:02,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:02,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-06 13:52:02,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:02,361 INFO L225 Difference]: With dead ends: 361 [2022-04-06 13:52:02,361 INFO L226 Difference]: Without dead ends: 200 [2022-04-06 13:52:02,362 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:02,363 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 20 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:02,363 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 13:52:02,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-04-06 13:52:02,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-04-06 13:52:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-04-06 13:52:02,368 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 66 [2022-04-06 13:52:02,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:02,368 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-04-06 13:52:02,368 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-04-06 13:52:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 13:52:02,369 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:02,369 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:02,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 13:52:02,370 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1315364651, now seen corresponding path program 1 times [2022-04-06 13:52:02,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:02,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488698003] [2022-04-06 13:52:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:02,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:52:02,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:02,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488698003] [2022-04-06 13:52:02,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488698003] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:02,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:02,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:02,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867941563] [2022-04-06 13:52:02,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:02,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:02,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:02,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:02,512 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:03,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:04,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:06,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:07,604 INFO L93 Difference]: Finished difference Result 448 states and 685 transitions. [2022-04-06 13:52:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:07,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-06 13:52:07,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:07,606 INFO L225 Difference]: With dead ends: 448 [2022-04-06 13:52:07,606 INFO L226 Difference]: Without dead ends: 287 [2022-04-06 13:52:07,607 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:07,607 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 144 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:07,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:52:07,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-04-06 13:52:07,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-04-06 13:52:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5054945054945055) internal successors, (274), 182 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:07,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 278 transitions. [2022-04-06 13:52:07,614 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 278 transitions. Word has length 67 [2022-04-06 13:52:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:07,614 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 278 transitions. [2022-04-06 13:52:07,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 278 transitions. [2022-04-06 13:52:07,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 13:52:07,615 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:07,615 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:07,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 13:52:07,615 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:07,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:07,616 INFO L85 PathProgramCache]: Analyzing trace with hash 972914138, now seen corresponding path program 1 times [2022-04-06 13:52:07,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:07,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256801511] [2022-04-06 13:52:07,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:07,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:52:07,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:07,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256801511] [2022-04-06 13:52:07,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256801511] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:07,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:07,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:07,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529338954] [2022-04-06 13:52:07,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:07,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:07,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:07,727 INFO L87 Difference]: Start difference. First operand 187 states and 278 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:08,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:12,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:12,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:12,485 INFO L93 Difference]: Finished difference Result 388 states and 585 transitions. [2022-04-06 13:52:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:12,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-06 13:52:12,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:12,487 INFO L225 Difference]: With dead ends: 388 [2022-04-06 13:52:12,487 INFO L226 Difference]: Without dead ends: 227 [2022-04-06 13:52:12,487 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:12,488 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:12,488 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 515 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 13:52:12,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-04-06 13:52:12,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 209. [2022-04-06 13:52:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 312 transitions. [2022-04-06 13:52:12,494 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 312 transitions. Word has length 67 [2022-04-06 13:52:12,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:12,495 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 312 transitions. [2022-04-06 13:52:12,495 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 312 transitions. [2022-04-06 13:52:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 13:52:12,496 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:12,496 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:12,496 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 13:52:12,496 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2136087668, now seen corresponding path program 1 times [2022-04-06 13:52:12,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:12,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198851790] [2022-04-06 13:52:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:12,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-06 13:52:12,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:12,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198851790] [2022-04-06 13:52:12,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198851790] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:12,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:12,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:12,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024505927] [2022-04-06 13:52:12,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:12,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:12,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:12,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:12,615 INFO L87 Difference]: Start difference. First operand 209 states and 312 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:15,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:17,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:17,871 INFO L93 Difference]: Finished difference Result 404 states and 609 transitions. [2022-04-06 13:52:17,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:17,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-06 13:52:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:17,873 INFO L225 Difference]: With dead ends: 404 [2022-04-06 13:52:17,873 INFO L226 Difference]: Without dead ends: 221 [2022-04-06 13:52:17,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:17,874 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 20 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:17,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 576 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 13:52:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-04-06 13:52:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 209. [2022-04-06 13:52:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5049019607843137) internal successors, (307), 204 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 311 transitions. [2022-04-06 13:52:17,880 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 311 transitions. Word has length 81 [2022-04-06 13:52:17,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:17,880 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 311 transitions. [2022-04-06 13:52:17,880 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:17,881 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 311 transitions. [2022-04-06 13:52:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 13:52:17,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:17,882 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:17,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 13:52:17,882 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash -230336556, now seen corresponding path program 1 times [2022-04-06 13:52:17,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:17,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838627973] [2022-04-06 13:52:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:17,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:52:17,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:17,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838627973] [2022-04-06 13:52:17,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838627973] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:17,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:17,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:17,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647371362] [2022-04-06 13:52:17,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:17,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:17,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:17,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:17,989 INFO L87 Difference]: Start difference. First operand 209 states and 311 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:19,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:21,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:22,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:24,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:25,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:25,101 INFO L93 Difference]: Finished difference Result 491 states and 745 transitions. [2022-04-06 13:52:25,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:25,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-06 13:52:25,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:25,103 INFO L225 Difference]: With dead ends: 491 [2022-04-06 13:52:25,103 INFO L226 Difference]: Without dead ends: 308 [2022-04-06 13:52:25,104 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:25,104 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 141 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:25,104 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 13:52:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-04-06 13:52:25,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-04-06 13:52:25,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.497560975609756) internal successors, (307), 205 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 311 transitions. [2022-04-06 13:52:25,110 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 311 transitions. Word has length 81 [2022-04-06 13:52:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:25,111 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 311 transitions. [2022-04-06 13:52:25,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 311 transitions. [2022-04-06 13:52:25,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 13:52:25,112 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:25,112 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:25,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 13:52:25,112 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash 22437823, now seen corresponding path program 1 times [2022-04-06 13:52:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:25,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241329992] [2022-04-06 13:52:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:25,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:25,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:52:25,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:25,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241329992] [2022-04-06 13:52:25,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241329992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:25,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:25,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:25,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757249949] [2022-04-06 13:52:25,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:25,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:25,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:25,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:25,222 INFO L87 Difference]: Start difference. First operand 210 states and 311 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:26,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:28,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:29,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:30,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:30,721 INFO L93 Difference]: Finished difference Result 411 states and 615 transitions. [2022-04-06 13:52:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-06 13:52:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:30,723 INFO L225 Difference]: With dead ends: 411 [2022-04-06 13:52:30,723 INFO L226 Difference]: Without dead ends: 227 [2022-04-06 13:52:30,723 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:30,724 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 38 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:30,724 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 13:52:30,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-04-06 13:52:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-04-06 13:52:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4926829268292683) internal successors, (306), 205 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 310 transitions. [2022-04-06 13:52:30,730 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 310 transitions. Word has length 82 [2022-04-06 13:52:30,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:30,730 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 310 transitions. [2022-04-06 13:52:30,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 310 transitions. [2022-04-06 13:52:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 13:52:30,731 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:30,731 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:30,732 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 13:52:30,732 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:30,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2019421135, now seen corresponding path program 1 times [2022-04-06 13:52:30,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:30,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272326969] [2022-04-06 13:52:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:52:30,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:30,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272326969] [2022-04-06 13:52:30,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272326969] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:30,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:30,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:30,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050598000] [2022-04-06 13:52:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:30,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:30,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:30,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:30,865 INFO L87 Difference]: Start difference. First operand 210 states and 310 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:32,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:34,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:36,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:36,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:36,793 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-04-06 13:52:36,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:36,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-06 13:52:36,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:36,795 INFO L225 Difference]: With dead ends: 411 [2022-04-06 13:52:36,795 INFO L226 Difference]: Without dead ends: 227 [2022-04-06 13:52:36,795 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:36,796 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 36 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:36,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 13:52:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-04-06 13:52:36,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-04-06 13:52:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4878048780487805) internal successors, (305), 205 states have internal predecessors, (305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 309 transitions. [2022-04-06 13:52:36,802 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 309 transitions. Word has length 83 [2022-04-06 13:52:36,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:36,802 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 309 transitions. [2022-04-06 13:52:36,802 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 309 transitions. [2022-04-06 13:52:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 13:52:36,805 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:36,805 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:36,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 13:52:36,805 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash -915248837, now seen corresponding path program 1 times [2022-04-06 13:52:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:36,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423286986] [2022-04-06 13:52:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:36,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:52:36,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:36,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423286986] [2022-04-06 13:52:36,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423286986] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:36,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:36,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:36,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578351565] [2022-04-06 13:52:36,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:36,927 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:36,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:36,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:36,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:36,928 INFO L87 Difference]: Start difference. First operand 210 states and 309 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:40,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:42,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:42,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:42,799 INFO L93 Difference]: Finished difference Result 492 states and 739 transitions. [2022-04-06 13:52:42,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:42,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-06 13:52:42,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:42,801 INFO L225 Difference]: With dead ends: 492 [2022-04-06 13:52:42,801 INFO L226 Difference]: Without dead ends: 308 [2022-04-06 13:52:42,802 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:42,802 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:42,803 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 13:52:42,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-04-06 13:52:42,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-04-06 13:52:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.473170731707317) internal successors, (302), 205 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 306 transitions. [2022-04-06 13:52:42,809 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 306 transitions. Word has length 84 [2022-04-06 13:52:42,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:42,809 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 306 transitions. [2022-04-06 13:52:42,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 306 transitions. [2022-04-06 13:52:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-06 13:52:42,810 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:42,810 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:42,810 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 13:52:42,810 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:42,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:42,811 INFO L85 PathProgramCache]: Analyzing trace with hash 733553435, now seen corresponding path program 1 times [2022-04-06 13:52:42,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:42,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234264268] [2022-04-06 13:52:42,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:42,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:42,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:42,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234264268] [2022-04-06 13:52:42,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234264268] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:42,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:42,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784573143] [2022-04-06 13:52:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:42,932 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:42,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:42,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:42,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:42,933 INFO L87 Difference]: Start difference. First operand 210 states and 306 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:44,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:47,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:47,974 INFO L93 Difference]: Finished difference Result 498 states and 739 transitions. [2022-04-06 13:52:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:47,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-04-06 13:52:47,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:47,976 INFO L225 Difference]: With dead ends: 498 [2022-04-06 13:52:47,976 INFO L226 Difference]: Without dead ends: 314 [2022-04-06 13:52:47,976 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:47,977 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 91 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:47,977 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 491 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-04-06 13:52:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-06 13:52:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 251. [2022-04-06 13:52:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5040650406504066) internal successors, (370), 246 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 374 transitions. [2022-04-06 13:52:47,984 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 374 transitions. Word has length 89 [2022-04-06 13:52:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:47,984 INFO L478 AbstractCegarLoop]: Abstraction has 251 states and 374 transitions. [2022-04-06 13:52:47,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 374 transitions. [2022-04-06 13:52:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-06 13:52:47,985 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:47,986 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:47,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 13:52:47,986 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:47,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:47,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1202106852, now seen corresponding path program 1 times [2022-04-06 13:52:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:47,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396358672] [2022-04-06 13:52:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:47,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:48,109 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:48,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:48,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396358672] [2022-04-06 13:52:48,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396358672] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:48,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:48,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:48,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651847444] [2022-04-06 13:52:48,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:48,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:48,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:48,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:48,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:48,110 INFO L87 Difference]: Start difference. First operand 251 states and 374 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:49,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:51,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:53,020 INFO L93 Difference]: Finished difference Result 593 states and 895 transitions. [2022-04-06 13:52:53,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:53,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-04-06 13:52:53,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:53,022 INFO L225 Difference]: With dead ends: 593 [2022-04-06 13:52:53,022 INFO L226 Difference]: Without dead ends: 368 [2022-04-06 13:52:53,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:53,023 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:53,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 354 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 13:52:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-04-06 13:52:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 250. [2022-04-06 13:52:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.506122448979592) internal successors, (369), 245 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 373 transitions. [2022-04-06 13:52:53,031 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 373 transitions. Word has length 89 [2022-04-06 13:52:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:53,031 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 373 transitions. [2022-04-06 13:52:53,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 373 transitions. [2022-04-06 13:52:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-06 13:52:53,032 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:53,032 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:53,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 13:52:53,032 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2117392348, now seen corresponding path program 1 times [2022-04-06 13:52:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:53,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288181614] [2022-04-06 13:52:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:53,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:53,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288181614] [2022-04-06 13:52:53,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288181614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:53,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:53,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:53,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924379760] [2022-04-06 13:52:53,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:53,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:53,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:53,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:53,150 INFO L87 Difference]: Start difference. First operand 250 states and 373 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:54,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:56,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:58,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:59,403 INFO L93 Difference]: Finished difference Result 570 states and 861 transitions. [2022-04-06 13:52:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-04-06 13:52:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:59,405 INFO L225 Difference]: With dead ends: 570 [2022-04-06 13:52:59,405 INFO L226 Difference]: Without dead ends: 346 [2022-04-06 13:52:59,406 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:59,406 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 80 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:59,406 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 475 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 511 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:52:59,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-04-06 13:52:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 292. [2022-04-06 13:52:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5261324041811846) internal successors, (438), 287 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 442 transitions. [2022-04-06 13:52:59,414 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 442 transitions. Word has length 90 [2022-04-06 13:52:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:59,414 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 442 transitions. [2022-04-06 13:52:59,415 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 442 transitions. [2022-04-06 13:52:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-06 13:52:59,416 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:59,416 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:59,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 13:52:59,416 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:59,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:59,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1993319101, now seen corresponding path program 1 times [2022-04-06 13:52:59,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:59,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701666683] [2022-04-06 13:52:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:59,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:59,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:59,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701666683] [2022-04-06 13:52:59,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701666683] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:59,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:59,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:59,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496682826] [2022-04-06 13:52:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:59,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:59,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:59,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:59,530 INFO L87 Difference]: Start difference. First operand 292 states and 442 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:01,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:03,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:05,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:07,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:07,816 INFO L93 Difference]: Finished difference Result 656 states and 1005 transitions. [2022-04-06 13:53:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-04-06 13:53:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:07,818 INFO L225 Difference]: With dead ends: 656 [2022-04-06 13:53:07,818 INFO L226 Difference]: Without dead ends: 390 [2022-04-06 13:53:07,819 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:07,819 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 117 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:07,820 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 376 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-04-06 13:53:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-04-06 13:53:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 272. [2022-04-06 13:53:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.5430711610486891) internal successors, (412), 267 states have internal predecessors, (412), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 416 transitions. [2022-04-06 13:53:07,827 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 416 transitions. Word has length 90 [2022-04-06 13:53:07,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:07,827 INFO L478 AbstractCegarLoop]: Abstraction has 272 states and 416 transitions. [2022-04-06 13:53:07,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 416 transitions. [2022-04-06 13:53:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 13:53:07,829 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:07,829 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:07,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 13:53:07,829 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:07,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1693007915, now seen corresponding path program 1 times [2022-04-06 13:53:07,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:07,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33809939] [2022-04-06 13:53:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:07,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:53:07,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:07,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33809939] [2022-04-06 13:53:07,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33809939] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:07,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:07,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:07,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945969435] [2022-04-06 13:53:07,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:07,947 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:07,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:07,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:07,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:07,948 INFO L87 Difference]: Start difference. First operand 272 states and 416 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:10,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:12,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:14,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:14,452 INFO L93 Difference]: Finished difference Result 611 states and 942 transitions. [2022-04-06 13:53:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-06 13:53:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:14,454 INFO L225 Difference]: With dead ends: 611 [2022-04-06 13:53:14,454 INFO L226 Difference]: Without dead ends: 365 [2022-04-06 13:53:14,455 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:14,455 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 86 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:14,456 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 481 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 13:53:14,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-04-06 13:53:14,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 306. [2022-04-06 13:53:14,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 301 states have (on average 1.548172757475083) internal successors, (466), 301 states have internal predecessors, (466), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 470 transitions. [2022-04-06 13:53:14,463 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 470 transitions. Word has length 118 [2022-04-06 13:53:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:14,463 INFO L478 AbstractCegarLoop]: Abstraction has 306 states and 470 transitions. [2022-04-06 13:53:14,464 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 470 transitions. [2022-04-06 13:53:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 13:53:14,465 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:14,465 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:14,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 13:53:14,465 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:14,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:14,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1647730486, now seen corresponding path program 1 times [2022-04-06 13:53:14,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:14,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347106705] [2022-04-06 13:53:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:14,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:53:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:14,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347106705] [2022-04-06 13:53:14,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347106705] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:14,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:14,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:14,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039614072] [2022-04-06 13:53:14,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:14,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:14,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:14,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:14,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:14,585 INFO L87 Difference]: Start difference. First operand 306 states and 470 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:16,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:19,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:20,136 INFO L93 Difference]: Finished difference Result 738 states and 1147 transitions. [2022-04-06 13:53:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:20,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-06 13:53:20,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:20,138 INFO L225 Difference]: With dead ends: 738 [2022-04-06 13:53:20,138 INFO L226 Difference]: Without dead ends: 458 [2022-04-06 13:53:20,139 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:20,139 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 123 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:20,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 364 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 13:53:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-04-06 13:53:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 336. [2022-04-06 13:53:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 331 states have (on average 1.5589123867069485) internal successors, (516), 331 states have internal predecessors, (516), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 520 transitions. [2022-04-06 13:53:20,148 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 520 transitions. Word has length 118 [2022-04-06 13:53:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:20,148 INFO L478 AbstractCegarLoop]: Abstraction has 336 states and 520 transitions. [2022-04-06 13:53:20,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 520 transitions. [2022-04-06 13:53:20,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 13:53:20,150 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:20,150 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:20,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 13:53:20,150 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:20,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash -783527628, now seen corresponding path program 1 times [2022-04-06 13:53:20,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:20,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32441864] [2022-04-06 13:53:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:20,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:53:20,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:20,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32441864] [2022-04-06 13:53:20,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32441864] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:20,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:20,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:20,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472317030] [2022-04-06 13:53:20,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:20,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:20,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:20,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:20,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:20,266 INFO L87 Difference]: Start difference. First operand 336 states and 520 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:21,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:22,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:25,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:25,999 INFO L93 Difference]: Finished difference Result 762 states and 1183 transitions. [2022-04-06 13:53:26,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:26,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 13:53:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:26,002 INFO L225 Difference]: With dead ends: 762 [2022-04-06 13:53:26,002 INFO L226 Difference]: Without dead ends: 452 [2022-04-06 13:53:26,003 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:26,004 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 119 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:26,004 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 352 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:53:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-04-06 13:53:26,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 373. [2022-04-06 13:53:26,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 368 states have (on average 1.565217391304348) internal successors, (576), 368 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 580 transitions. [2022-04-06 13:53:26,013 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 580 transitions. Word has length 123 [2022-04-06 13:53:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:26,013 INFO L478 AbstractCegarLoop]: Abstraction has 373 states and 580 transitions. [2022-04-06 13:53:26,013 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 580 transitions. [2022-04-06 13:53:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-06 13:53:26,015 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:26,015 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:26,015 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 13:53:26,015 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:26,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1000254116, now seen corresponding path program 1 times [2022-04-06 13:53:26,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:26,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452436270] [2022-04-06 13:53:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:53:26,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:26,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452436270] [2022-04-06 13:53:26,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452436270] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:26,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:26,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:26,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91693685] [2022-04-06 13:53:26,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:26,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:26,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:26,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:26,135 INFO L87 Difference]: Start difference. First operand 373 states and 580 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:29,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:30,279 INFO L93 Difference]: Finished difference Result 811 states and 1266 transitions. [2022-04-06 13:53:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:30,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-06 13:53:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:30,281 INFO L225 Difference]: With dead ends: 811 [2022-04-06 13:53:30,281 INFO L226 Difference]: Without dead ends: 464 [2022-04-06 13:53:30,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:30,282 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 77 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:30,282 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 483 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 13:53:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-04-06 13:53:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 413. [2022-04-06 13:53:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5686274509803921) internal successors, (640), 408 states have internal predecessors, (640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 644 transitions. [2022-04-06 13:53:30,292 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 644 transitions. Word has length 124 [2022-04-06 13:53:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:30,293 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 644 transitions. [2022-04-06 13:53:30,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:30,293 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 644 transitions. [2022-04-06 13:53:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-06 13:53:30,294 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:30,294 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:30,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 13:53:30,295 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:30,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:30,295 INFO L85 PathProgramCache]: Analyzing trace with hash 108561083, now seen corresponding path program 1 times [2022-04-06 13:53:30,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:30,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926634428] [2022-04-06 13:53:30,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:30,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-04-06 13:53:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:30,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926634428] [2022-04-06 13:53:30,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926634428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:30,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:30,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:30,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497447560] [2022-04-06 13:53:30,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:30,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:30,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:30,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:30,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:30,422 INFO L87 Difference]: Start difference. First operand 413 states and 644 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:33,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:35,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:36,311 INFO L93 Difference]: Finished difference Result 845 states and 1323 transitions. [2022-04-06 13:53:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-06 13:53:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:36,313 INFO L225 Difference]: With dead ends: 845 [2022-04-06 13:53:36,313 INFO L226 Difference]: Without dead ends: 458 [2022-04-06 13:53:36,314 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:36,314 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 34 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:36,315 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 13:53:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-04-06 13:53:36,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 437. [2022-04-06 13:53:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 432 states have (on average 1.5648148148148149) internal successors, (676), 432 states have internal predecessors, (676), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 680 transitions. [2022-04-06 13:53:36,324 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 680 transitions. Word has length 124 [2022-04-06 13:53:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:36,325 INFO L478 AbstractCegarLoop]: Abstraction has 437 states and 680 transitions. [2022-04-06 13:53:36,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 680 transitions. [2022-04-06 13:53:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 13:53:36,326 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:36,326 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:36,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 13:53:36,326 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1153121249, now seen corresponding path program 1 times [2022-04-06 13:53:36,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:36,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421474882] [2022-04-06 13:53:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:53:36,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:36,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421474882] [2022-04-06 13:53:36,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421474882] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:36,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:36,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:36,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112273469] [2022-04-06 13:53:36,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:36,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:36,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:36,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:36,445 INFO L87 Difference]: Start difference. First operand 437 states and 680 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:39,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:41,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:42,110 INFO L93 Difference]: Finished difference Result 964 states and 1502 transitions. [2022-04-06 13:53:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:42,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-06 13:53:42,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:42,112 INFO L225 Difference]: With dead ends: 964 [2022-04-06 13:53:42,112 INFO L226 Difference]: Without dead ends: 553 [2022-04-06 13:53:42,113 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:42,114 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:42,114 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 353 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:53:42,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-04-06 13:53:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 480. [2022-04-06 13:53:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5705263157894738) internal successors, (746), 475 states have internal predecessors, (746), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 750 transitions. [2022-04-06 13:53:42,125 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 750 transitions. Word has length 132 [2022-04-06 13:53:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:42,125 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 750 transitions. [2022-04-06 13:53:42,125 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 750 transitions. [2022-04-06 13:53:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-06 13:53:42,126 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:42,126 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:42,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 13:53:42,127 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:42,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1150642105, now seen corresponding path program 1 times [2022-04-06 13:53:42,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:42,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108927740] [2022-04-06 13:53:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:42,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:53:42,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:42,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108927740] [2022-04-06 13:53:42,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108927740] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:42,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:42,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:42,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174710803] [2022-04-06 13:53:42,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:42,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:42,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:42,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:42,242 INFO L87 Difference]: Start difference. First operand 480 states and 750 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:45,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:46,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:46,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:46,813 INFO L93 Difference]: Finished difference Result 977 states and 1528 transitions. [2022-04-06 13:53:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-06 13:53:46,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:46,815 INFO L225 Difference]: With dead ends: 977 [2022-04-06 13:53:46,815 INFO L226 Difference]: Without dead ends: 523 [2022-04-06 13:53:46,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:46,817 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 61 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:46,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 489 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 13:53:46,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-04-06 13:53:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 483. [2022-04-06 13:53:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5669456066945606) internal successors, (749), 478 states have internal predecessors, (749), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 753 transitions. [2022-04-06 13:53:46,827 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 753 transitions. Word has length 133 [2022-04-06 13:53:46,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:46,827 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 753 transitions. [2022-04-06 13:53:46,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 753 transitions. [2022-04-06 13:53:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 13:53:46,829 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:46,829 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:46,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 13:53:46,829 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:46,830 INFO L85 PathProgramCache]: Analyzing trace with hash -388650695, now seen corresponding path program 1 times [2022-04-06 13:53:46,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:46,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862701453] [2022-04-06 13:53:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 13:53:46,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:46,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862701453] [2022-04-06 13:53:46,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862701453] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:46,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:46,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:46,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485031031] [2022-04-06 13:53:46,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:46,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:46,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:46,951 INFO L87 Difference]: Start difference. First operand 483 states and 753 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:48,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:49,409 INFO L93 Difference]: Finished difference Result 1016 states and 1583 transitions. [2022-04-06 13:53:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 13:53:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:49,411 INFO L225 Difference]: With dead ends: 1016 [2022-04-06 13:53:49,411 INFO L226 Difference]: Without dead ends: 559 [2022-04-06 13:53:49,412 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:49,413 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:49,413 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:53:49,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-04-06 13:53:49,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 483. [2022-04-06 13:53:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5481171548117154) internal successors, (740), 478 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:49,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 744 transitions. [2022-04-06 13:53:49,423 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 744 transitions. Word has length 139 [2022-04-06 13:53:49,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:49,424 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 744 transitions. [2022-04-06 13:53:49,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:49,424 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 744 transitions. [2022-04-06 13:53:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-06 13:53:49,425 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:49,425 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:49,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 13:53:49,425 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:49,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1482777273, now seen corresponding path program 1 times [2022-04-06 13:53:49,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:49,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831088295] [2022-04-06 13:53:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 13:53:49,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:49,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831088295] [2022-04-06 13:53:49,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831088295] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:49,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:49,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:49,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138396667] [2022-04-06 13:53:49,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:49,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:49,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:49,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:49,567 INFO L87 Difference]: Start difference. First operand 483 states and 744 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:51,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:54,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:54,519 INFO L93 Difference]: Finished difference Result 1006 states and 1552 transitions. [2022-04-06 13:53:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:54,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-04-06 13:53:54,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:54,521 INFO L225 Difference]: With dead ends: 1006 [2022-04-06 13:53:54,521 INFO L226 Difference]: Without dead ends: 549 [2022-04-06 13:53:54,522 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:54,523 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 135 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:54,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 396 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 13:53:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-04-06 13:53:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 483. [2022-04-06 13:53:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5292887029288702) internal successors, (731), 478 states have internal predecessors, (731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 735 transitions. [2022-04-06 13:53:54,534 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 735 transitions. Word has length 140 [2022-04-06 13:53:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:54,534 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 735 transitions. [2022-04-06 13:53:54,537 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 735 transitions. [2022-04-06 13:53:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 13:53:54,538 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:54,539 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:54,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 13:53:54,539 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:54,539 INFO L85 PathProgramCache]: Analyzing trace with hash 768602161, now seen corresponding path program 1 times [2022-04-06 13:53:54,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:54,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789312184] [2022-04-06 13:53:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:54,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:53:54,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:54,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789312184] [2022-04-06 13:53:54,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789312184] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:54,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:54,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:54,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802583152] [2022-04-06 13:53:54,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:54,672 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:54,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:54,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:54,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:54,673 INFO L87 Difference]: Start difference. First operand 483 states and 735 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:56,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:58,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:59,845 INFO L93 Difference]: Finished difference Result 1049 states and 1602 transitions. [2022-04-06 13:53:59,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:59,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 13:53:59,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:59,848 INFO L225 Difference]: With dead ends: 1049 [2022-04-06 13:53:59,848 INFO L226 Difference]: Without dead ends: 592 [2022-04-06 13:53:59,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:59,849 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:59,849 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 13:53:59,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-04-06 13:53:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 513. [2022-04-06 13:53:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5177165354330708) internal successors, (771), 508 states have internal predecessors, (771), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 775 transitions. [2022-04-06 13:53:59,861 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 775 transitions. Word has length 145 [2022-04-06 13:53:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:59,861 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 775 transitions. [2022-04-06 13:53:59,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 775 transitions. [2022-04-06 13:53:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 13:53:59,862 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:59,863 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:59,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 13:53:59,863 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:59,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1175650522, now seen corresponding path program 1 times [2022-04-06 13:53:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:59,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851017276] [2022-04-06 13:53:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:59,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 13:53:59,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851017276] [2022-04-06 13:53:59,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851017276] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:59,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:59,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:59,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631861867] [2022-04-06 13:53:59,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:59,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:59,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:59,995 INFO L87 Difference]: Start difference. First operand 513 states and 775 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:03,625 INFO L93 Difference]: Finished difference Result 1066 states and 1614 transitions. [2022-04-06 13:54:03,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:03,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 13:54:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:03,627 INFO L225 Difference]: With dead ends: 1066 [2022-04-06 13:54:03,627 INFO L226 Difference]: Without dead ends: 579 [2022-04-06 13:54:03,628 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:03,629 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 123 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:03,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 406 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 13:54:03,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-04-06 13:54:03,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 513. [2022-04-06 13:54:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5019685039370079) internal successors, (763), 508 states have internal predecessors, (763), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 767 transitions. [2022-04-06 13:54:03,640 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 767 transitions. Word has length 146 [2022-04-06 13:54:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:03,640 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 767 transitions. [2022-04-06 13:54:03,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:03,640 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 767 transitions. [2022-04-06 13:54:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 13:54:03,642 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:03,642 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:03,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 13:54:03,642 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:03,643 INFO L85 PathProgramCache]: Analyzing trace with hash 404056418, now seen corresponding path program 1 times [2022-04-06 13:54:03,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:03,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456184711] [2022-04-06 13:54:03,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:03,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:03,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:54:03,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:03,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456184711] [2022-04-06 13:54:03,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456184711] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:03,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:03,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:03,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485279294] [2022-04-06 13:54:03,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:03,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:03,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:03,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:03,764 INFO L87 Difference]: Start difference. First operand 513 states and 767 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:05,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:08,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:08,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:08,640 INFO L93 Difference]: Finished difference Result 1028 states and 1543 transitions. [2022-04-06 13:54:08,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:08,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 13:54:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:08,645 INFO L225 Difference]: With dead ends: 1028 [2022-04-06 13:54:08,645 INFO L226 Difference]: Without dead ends: 541 [2022-04-06 13:54:08,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:08,647 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 58 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:08,647 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 517 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 13:54:08,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-04-06 13:54:08,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 513. [2022-04-06 13:54:08,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5) internal successors, (762), 508 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 766 transitions. [2022-04-06 13:54:08,658 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 766 transitions. Word has length 146 [2022-04-06 13:54:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:08,658 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 766 transitions. [2022-04-06 13:54:08,659 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 766 transitions. [2022-04-06 13:54:08,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 13:54:08,660 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:08,660 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:08,660 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 13:54:08,660 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:08,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:08,661 INFO L85 PathProgramCache]: Analyzing trace with hash 222448889, now seen corresponding path program 1 times [2022-04-06 13:54:08,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:08,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353972696] [2022-04-06 13:54:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:54:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:08,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353972696] [2022-04-06 13:54:08,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353972696] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:08,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:08,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:08,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601184609] [2022-04-06 13:54:08,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:08,788 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:08,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:08,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:08,789 INFO L87 Difference]: Start difference. First operand 513 states and 766 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:11,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:13,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:15,040 INFO L93 Difference]: Finished difference Result 1066 states and 1596 transitions. [2022-04-06 13:54:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 13:54:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:15,042 INFO L225 Difference]: With dead ends: 1066 [2022-04-06 13:54:15,042 INFO L226 Difference]: Without dead ends: 579 [2022-04-06 13:54:15,042 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:15,045 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 109 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:15,045 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 396 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:54:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-04-06 13:54:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 513. [2022-04-06 13:54:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4940944881889764) internal successors, (759), 508 states have internal predecessors, (759), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 763 transitions. [2022-04-06 13:54:15,060 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 763 transitions. Word has length 146 [2022-04-06 13:54:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:15,060 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 763 transitions. [2022-04-06 13:54:15,061 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 763 transitions. [2022-04-06 13:54:15,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 13:54:15,062 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:15,062 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:15,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 13:54:15,063 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:15,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1085963958, now seen corresponding path program 1 times [2022-04-06 13:54:15,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:15,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755461089] [2022-04-06 13:54:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:15,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:54:15,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:15,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755461089] [2022-04-06 13:54:15,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755461089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:15,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:15,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:15,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581340515] [2022-04-06 13:54:15,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:15,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:15,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:15,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:15,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:15,189 INFO L87 Difference]: Start difference. First operand 513 states and 763 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:17,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:19,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:20,764 INFO L93 Difference]: Finished difference Result 1109 states and 1655 transitions. [2022-04-06 13:54:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 13:54:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:20,766 INFO L225 Difference]: With dead ends: 1109 [2022-04-06 13:54:20,766 INFO L226 Difference]: Without dead ends: 622 [2022-04-06 13:54:20,766 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:20,767 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 118 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:20,767 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:54:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-04-06 13:54:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 541. [2022-04-06 13:54:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 536 states have (on average 1.4794776119402986) internal successors, (793), 536 states have internal predecessors, (793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 797 transitions. [2022-04-06 13:54:20,777 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 797 transitions. Word has length 148 [2022-04-06 13:54:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:20,778 INFO L478 AbstractCegarLoop]: Abstraction has 541 states and 797 transitions. [2022-04-06 13:54:20,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 797 transitions. [2022-04-06 13:54:20,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 13:54:20,779 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:20,779 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:20,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 13:54:20,780 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:20,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:20,780 INFO L85 PathProgramCache]: Analyzing trace with hash 542827771, now seen corresponding path program 1 times [2022-04-06 13:54:20,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:20,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537454036] [2022-04-06 13:54:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:20,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:54:20,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:20,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537454036] [2022-04-06 13:54:20,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537454036] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:20,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:20,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:20,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970721687] [2022-04-06 13:54:20,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:20,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:20,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:20,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:20,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:20,908 INFO L87 Difference]: Start difference. First operand 541 states and 797 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:22,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:23,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:25,193 INFO L93 Difference]: Finished difference Result 1122 states and 1658 transitions. [2022-04-06 13:54:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 13:54:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:25,196 INFO L225 Difference]: With dead ends: 1122 [2022-04-06 13:54:25,196 INFO L226 Difference]: Without dead ends: 607 [2022-04-06 13:54:25,197 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:25,197 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:25,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 13:54:25,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-04-06 13:54:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 541. [2022-04-06 13:54:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 536 states have (on average 1.4645522388059702) internal successors, (785), 536 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 789 transitions. [2022-04-06 13:54:25,207 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 789 transitions. Word has length 149 [2022-04-06 13:54:25,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:25,207 INFO L478 AbstractCegarLoop]: Abstraction has 541 states and 789 transitions. [2022-04-06 13:54:25,207 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:25,207 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 789 transitions. [2022-04-06 13:54:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 13:54:25,209 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:25,209 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:25,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 13:54:25,209 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:25,210 INFO L85 PathProgramCache]: Analyzing trace with hash -290566255, now seen corresponding path program 1 times [2022-04-06 13:54:25,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:25,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255608647] [2022-04-06 13:54:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:25,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:25,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 13:54:25,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:25,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255608647] [2022-04-06 13:54:25,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255608647] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:25,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:25,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:25,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877707223] [2022-04-06 13:54:25,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:25,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:25,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:25,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:25,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:25,336 INFO L87 Difference]: Start difference. First operand 541 states and 789 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:28,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:29,693 INFO L93 Difference]: Finished difference Result 1165 states and 1705 transitions. [2022-04-06 13:54:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:29,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 13:54:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:29,695 INFO L225 Difference]: With dead ends: 1165 [2022-04-06 13:54:29,695 INFO L226 Difference]: Without dead ends: 650 [2022-04-06 13:54:29,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:29,697 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:29,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 13:54:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-04-06 13:54:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 576. [2022-04-06 13:54:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.457092819614711) internal successors, (832), 571 states have internal predecessors, (832), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:29,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 836 transitions. [2022-04-06 13:54:29,709 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 836 transitions. Word has length 155 [2022-04-06 13:54:29,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:29,709 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 836 transitions. [2022-04-06 13:54:29,709 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 836 transitions. [2022-04-06 13:54:29,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 13:54:29,710 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:29,711 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:29,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 13:54:29,711 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:29,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:29,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1528516420, now seen corresponding path program 1 times [2022-04-06 13:54:29,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:29,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62504307] [2022-04-06 13:54:29,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:29,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 13:54:29,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:29,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62504307] [2022-04-06 13:54:29,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62504307] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:29,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:29,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:29,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260350351] [2022-04-06 13:54:29,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:29,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:29,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:29,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:29,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:29,838 INFO L87 Difference]: Start difference. First operand 576 states and 836 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:32,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:32,095 INFO L93 Difference]: Finished difference Result 1630 states and 2384 transitions. [2022-04-06 13:54:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:32,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 13:54:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:32,099 INFO L225 Difference]: With dead ends: 1630 [2022-04-06 13:54:32,099 INFO L226 Difference]: Without dead ends: 1080 [2022-04-06 13:54:32,100 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:32,100 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:32,100 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 448 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 13:54:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-04-06 13:54:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2022-04-06 13:54:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1075 states have (on average 1.455813953488372) internal successors, (1565), 1075 states have internal predecessors, (1565), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1569 transitions. [2022-04-06 13:54:32,121 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1569 transitions. Word has length 155 [2022-04-06 13:54:32,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:32,121 INFO L478 AbstractCegarLoop]: Abstraction has 1080 states and 1569 transitions. [2022-04-06 13:54:32,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1569 transitions. [2022-04-06 13:54:32,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 13:54:32,124 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:32,124 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:32,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 13:54:32,124 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:32,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2047808707, now seen corresponding path program 1 times [2022-04-06 13:54:32,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:32,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384529918] [2022-04-06 13:54:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:32,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-06 13:54:32,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:32,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384529918] [2022-04-06 13:54:32,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384529918] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:32,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:32,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545972636] [2022-04-06 13:54:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:32,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:32,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:32,254 INFO L87 Difference]: Start difference. First operand 1080 states and 1569 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:34,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:34,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:34,533 INFO L93 Difference]: Finished difference Result 2161 states and 3145 transitions. [2022-04-06 13:54:34,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:34,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 13:54:34,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:34,536 INFO L225 Difference]: With dead ends: 2161 [2022-04-06 13:54:34,536 INFO L226 Difference]: Without dead ends: 1107 [2022-04-06 13:54:34,537 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:34,538 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:34,538 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:54:34,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-04-06 13:54:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1107. [2022-04-06 13:54:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1102 states have (on average 1.4519056261343013) internal successors, (1600), 1102 states have internal predecessors, (1600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:34,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1604 transitions. [2022-04-06 13:54:34,560 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1604 transitions. Word has length 155 [2022-04-06 13:54:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:34,560 INFO L478 AbstractCegarLoop]: Abstraction has 1107 states and 1604 transitions. [2022-04-06 13:54:34,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1604 transitions. [2022-04-06 13:54:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 13:54:34,562 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:34,562 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:34,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 13:54:34,563 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:34,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1773132606, now seen corresponding path program 1 times [2022-04-06 13:54:34,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:34,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526715036] [2022-04-06 13:54:34,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:34,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:34,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-06 13:54:34,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:34,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526715036] [2022-04-06 13:54:34,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526715036] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:34,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:34,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:34,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247336116] [2022-04-06 13:54:34,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:34,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:34,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:34,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:34,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:34,662 INFO L87 Difference]: Start difference. First operand 1107 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:36,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:39,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:39,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:39,460 INFO L93 Difference]: Finished difference Result 2190 states and 3181 transitions. [2022-04-06 13:54:39,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:39,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 13:54:39,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:39,464 INFO L225 Difference]: With dead ends: 2190 [2022-04-06 13:54:39,464 INFO L226 Difference]: Without dead ends: 1109 [2022-04-06 13:54:39,465 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:39,466 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:39,466 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 13:54:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-04-06 13:54:39,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2022-04-06 13:54:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1104 states have (on average 1.451086956521739) internal successors, (1602), 1104 states have internal predecessors, (1602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1606 transitions. [2022-04-06 13:54:39,488 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1606 transitions. Word has length 155 [2022-04-06 13:54:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:39,488 INFO L478 AbstractCegarLoop]: Abstraction has 1109 states and 1606 transitions. [2022-04-06 13:54:39,488 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1606 transitions. [2022-04-06 13:54:39,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 13:54:39,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:39,490 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:39,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 13:54:39,491 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:39,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:39,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1040554030, now seen corresponding path program 1 times [2022-04-06 13:54:39,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:39,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731908050] [2022-04-06 13:54:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:39,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:39,639 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 13:54:39,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:39,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731908050] [2022-04-06 13:54:39,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731908050] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:39,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:39,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:39,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955140688] [2022-04-06 13:54:39,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:39,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:39,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:39,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:39,640 INFO L87 Difference]: Start difference. First operand 1109 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:41,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:42,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:42,087 INFO L93 Difference]: Finished difference Result 2732 states and 3976 transitions. [2022-04-06 13:54:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:42,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 13:54:42,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:42,095 INFO L225 Difference]: With dead ends: 2732 [2022-04-06 13:54:42,095 INFO L226 Difference]: Without dead ends: 1651 [2022-04-06 13:54:42,096 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:42,097 INFO L913 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:42,097 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:54:42,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2022-04-06 13:54:42,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2022-04-06 13:54:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1646 states have (on average 1.451397326852977) internal successors, (2389), 1646 states have internal predecessors, (2389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2393 transitions. [2022-04-06 13:54:42,128 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2393 transitions. Word has length 173 [2022-04-06 13:54:42,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:42,129 INFO L478 AbstractCegarLoop]: Abstraction has 1651 states and 2393 transitions. [2022-04-06 13:54:42,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2393 transitions. [2022-04-06 13:54:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 13:54:42,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:42,131 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:42,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 13:54:42,132 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:42,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:42,132 INFO L85 PathProgramCache]: Analyzing trace with hash -865236792, now seen corresponding path program 1 times [2022-04-06 13:54:42,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:42,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961192731] [2022-04-06 13:54:42,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:42,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:42,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:54:42,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:42,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961192731] [2022-04-06 13:54:42,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961192731] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:42,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:42,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:42,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480292184] [2022-04-06 13:54:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:42,253 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:42,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:42,253 INFO L87 Difference]: Start difference. First operand 1651 states and 2393 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:43,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:45,078 INFO L93 Difference]: Finished difference Result 3784 states and 5503 transitions. [2022-04-06 13:54:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-04-06 13:54:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:45,085 INFO L225 Difference]: With dead ends: 3784 [2022-04-06 13:54:45,085 INFO L226 Difference]: Without dead ends: 2161 [2022-04-06 13:54:45,087 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:45,088 INFO L913 BasicCegarLoop]: 378 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:45,088 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 572 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-06 13:54:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2022-04-06 13:54:45,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2161. [2022-04-06 13:54:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2156 states have (on average 1.4512987012987013) internal successors, (3129), 2156 states have internal predecessors, (3129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3133 transitions. [2022-04-06 13:54:45,128 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3133 transitions. Word has length 174 [2022-04-06 13:54:45,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:45,128 INFO L478 AbstractCegarLoop]: Abstraction has 2161 states and 3133 transitions. [2022-04-06 13:54:45,128 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:45,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3133 transitions. [2022-04-06 13:54:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-04-06 13:54:45,132 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:45,132 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:45,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 13:54:45,133 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1896913379, now seen corresponding path program 1 times [2022-04-06 13:54:45,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:45,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642356856] [2022-04-06 13:54:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-06 13:54:45,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642356856] [2022-04-06 13:54:45,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642356856] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:45,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:45,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:45,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813359457] [2022-04-06 13:54:45,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:45,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:45,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:45,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:45,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:45,288 INFO L87 Difference]: Start difference. First operand 2161 states and 3133 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:48,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:49,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:49,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:49,973 INFO L93 Difference]: Finished difference Result 4842 states and 7039 transitions. [2022-04-06 13:54:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:49,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-04-06 13:54:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:49,979 INFO L225 Difference]: With dead ends: 4842 [2022-04-06 13:54:49,979 INFO L226 Difference]: Without dead ends: 2709 [2022-04-06 13:54:49,981 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:49,982 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 151 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:49,982 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 250 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 13:54:49,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2022-04-06 13:54:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2022-04-06 13:54:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2704 states have (on average 1.4530325443786982) internal successors, (3929), 2704 states have internal predecessors, (3929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3933 transitions. [2022-04-06 13:54:50,027 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3933 transitions. Word has length 257 [2022-04-06 13:54:50,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:50,028 INFO L478 AbstractCegarLoop]: Abstraction has 2709 states and 3933 transitions. [2022-04-06 13:54:50,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3933 transitions. [2022-04-06 13:54:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 13:54:50,032 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:50,032 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:50,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 13:54:50,033 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash 503424760, now seen corresponding path program 1 times [2022-04-06 13:54:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:50,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498842896] [2022-04-06 13:54:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:50,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:50,199 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 13:54:50,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:50,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498842896] [2022-04-06 13:54:50,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498842896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:50,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:50,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939672655] [2022-04-06 13:54:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:50,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:50,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:50,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:50,200 INFO L87 Difference]: Start difference. First operand 2709 states and 3933 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:51,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:53,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:55,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:55,861 INFO L93 Difference]: Finished difference Result 5743 states and 8310 transitions. [2022-04-06 13:54:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:55,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-04-06 13:54:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:55,870 INFO L225 Difference]: With dead ends: 5743 [2022-04-06 13:54:55,870 INFO L226 Difference]: Without dead ends: 3062 [2022-04-06 13:54:55,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:55,873 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 49 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:55,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 629 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:54:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-04-06 13:54:55,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2914. [2022-04-06 13:54:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2909 states have (on average 1.450326572705397) internal successors, (4219), 2909 states have internal predecessors, (4219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4223 transitions. [2022-04-06 13:54:55,926 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4223 transitions. Word has length 298 [2022-04-06 13:54:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:55,927 INFO L478 AbstractCegarLoop]: Abstraction has 2914 states and 4223 transitions. [2022-04-06 13:54:55,927 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:55,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4223 transitions. [2022-04-06 13:54:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 13:54:55,932 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:55,932 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:55,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 13:54:55,932 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:55,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1861311687, now seen corresponding path program 1 times [2022-04-06 13:54:55,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:55,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585411998] [2022-04-06 13:54:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:55,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:56,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-04-06 13:54:56,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:56,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585411998] [2022-04-06 13:54:56,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585411998] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:56,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:56,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:56,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187292584] [2022-04-06 13:54:56,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:56,103 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:56,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:56,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:56,104 INFO L87 Difference]: Start difference. First operand 2914 states and 4223 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:57,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:59,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:01,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:01,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:01,891 INFO L93 Difference]: Finished difference Result 6384 states and 9270 transitions. [2022-04-06 13:55:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:01,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-04-06 13:55:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:01,899 INFO L225 Difference]: With dead ends: 6384 [2022-04-06 13:55:01,900 INFO L226 Difference]: Without dead ends: 3498 [2022-04-06 13:55:01,903 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:01,904 INFO L913 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:01,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:55:01,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2022-04-06 13:55:01,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3498. [2022-04-06 13:55:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3493 states have (on average 1.450042943028915) internal successors, (5065), 3493 states have internal predecessors, (5065), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5069 transitions. [2022-04-06 13:55:01,959 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5069 transitions. Word has length 298 [2022-04-06 13:55:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:01,959 INFO L478 AbstractCegarLoop]: Abstraction has 3498 states and 5069 transitions. [2022-04-06 13:55:01,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5069 transitions. [2022-04-06 13:55:01,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-04-06 13:55:01,965 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:01,965 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:01,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 13:55:01,966 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:01,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:01,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1063867079, now seen corresponding path program 1 times [2022-04-06 13:55:01,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:01,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436019403] [2022-04-06 13:55:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:01,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-04-06 13:55:02,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:02,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436019403] [2022-04-06 13:55:02,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436019403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:02,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:02,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:02,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639719916] [2022-04-06 13:55:02,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:02,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:02,145 INFO L87 Difference]: Start difference. First operand 3498 states and 5069 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:03,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:05,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:06,272 INFO L93 Difference]: Finished difference Result 7520 states and 10915 transitions. [2022-04-06 13:55:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-04-06 13:55:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:06,279 INFO L225 Difference]: With dead ends: 7520 [2022-04-06 13:55:06,279 INFO L226 Difference]: Without dead ends: 4050 [2022-04-06 13:55:06,284 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:06,284 INFO L913 BasicCegarLoop]: 384 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:06,284 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 13:55:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-04-06 13:55:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 4050. [2022-04-06 13:55:06,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 4045 states have (on average 1.4496909765142152) internal successors, (5864), 4045 states have internal predecessors, (5864), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5868 transitions. [2022-04-06 13:55:06,360 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5868 transitions. Word has length 299 [2022-04-06 13:55:06,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:06,361 INFO L478 AbstractCegarLoop]: Abstraction has 4050 states and 5868 transitions. [2022-04-06 13:55:06,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:06,361 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5868 transitions. [2022-04-06 13:55:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-04-06 13:55:06,368 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:06,368 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:06,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 13:55:06,368 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:06,369 INFO L85 PathProgramCache]: Analyzing trace with hash -836812725, now seen corresponding path program 1 times [2022-04-06 13:55:06,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:06,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895058282] [2022-04-06 13:55:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:06,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-04-06 13:55:06,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:06,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895058282] [2022-04-06 13:55:06,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895058282] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:06,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:06,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:06,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123026006] [2022-04-06 13:55:06,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:06,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:06,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:06,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:06,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:06,594 INFO L87 Difference]: Start difference. First operand 4050 states and 5868 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:07,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:09,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:11,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:11,991 INFO L93 Difference]: Finished difference Result 8661 states and 12567 transitions. [2022-04-06 13:55:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:11,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 384 [2022-04-06 13:55:11,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:11,999 INFO L225 Difference]: With dead ends: 8661 [2022-04-06 13:55:11,999 INFO L226 Difference]: Without dead ends: 4639 [2022-04-06 13:55:12,004 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:12,004 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 150 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:12,004 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 379 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 249 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 13:55:12,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-04-06 13:55:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-04-06 13:55:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4634 states have (on average 1.451230038843332) internal successors, (6725), 4634 states have internal predecessors, (6725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 6729 transitions. [2022-04-06 13:55:12,100 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 6729 transitions. Word has length 384 [2022-04-06 13:55:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:12,100 INFO L478 AbstractCegarLoop]: Abstraction has 4639 states and 6729 transitions. [2022-04-06 13:55:12,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 6729 transitions. [2022-04-06 13:55:12,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-04-06 13:55:12,108 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:12,109 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:12,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 13:55:12,109 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:12,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash 909790957, now seen corresponding path program 1 times [2022-04-06 13:55:12,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:12,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093823740] [2022-04-06 13:55:12,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:12,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:12,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 921 proven. 330 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-04-06 13:55:12,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:12,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093823740] [2022-04-06 13:55:12,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093823740] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:55:12,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363472450] [2022-04-06 13:55:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:12,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:55:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:55:12,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 13:55:12,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 13:55:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:13,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 37 conjunts are in the unsatisfiable core [2022-04-06 13:55:13,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:55:13,778 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:55:13,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 13:55:13,936 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 13:55:13,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-06 13:55:14,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 13:55:14,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 13:55:14,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 13:55:14,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-04-06 13:55:14,392 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-04-06 13:55:14,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-04-06 13:55:14,441 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 13:55:14,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-04-06 13:55:14,678 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:55:14,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 13:55:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 950 proven. 126 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-04-06 13:55:14,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:55:15,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-04-06 13:55:15,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-04-06 13:55:19,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2022-04-06 13:55:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 948 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-04-06 13:55:19,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363472450] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:55:19,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:55:19,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 13] total 23 [2022-04-06 13:55:19,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093900683] [2022-04-06 13:55:19,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:19,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 13:55:19,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:19,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 13:55:19,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=438, Unknown=1, NotChecked=0, Total=506 [2022-04-06 13:55:19,586 INFO L87 Difference]: Start difference. First operand 4639 states and 6729 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:21,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:31,101 INFO L93 Difference]: Finished difference Result 11901 states and 17269 transitions. [2022-04-06 13:55:31,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 13:55:31,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-04-06 13:55:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:31,116 INFO L225 Difference]: With dead ends: 11901 [2022-04-06 13:55:31,116 INFO L226 Difference]: Without dead ends: 7290 [2022-04-06 13:55:31,127 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=98, Invalid=601, Unknown=3, NotChecked=0, Total=702 [2022-04-06 13:55:31,127 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 270 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 190 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:31,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 971 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 615 Invalid, 0 Unknown, 190 Unchecked, 3.3s Time] [2022-04-06 13:55:31,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2022-04-06 13:55:31,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 6393. [2022-04-06 13:55:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6393 states, 6388 states have (on average 1.4600814026299311) internal successors, (9327), 6388 states have internal predecessors, (9327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6393 states to 6393 states and 9331 transitions. [2022-04-06 13:55:31,292 INFO L78 Accepts]: Start accepts. Automaton has 6393 states and 9331 transitions. Word has length 426 [2022-04-06 13:55:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:31,293 INFO L478 AbstractCegarLoop]: Abstraction has 6393 states and 9331 transitions. [2022-04-06 13:55:31,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 6393 states and 9331 transitions. [2022-04-06 13:55:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-04-06 13:55:31,304 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:31,304 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:31,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 13:55:31,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-04-06 13:55:31,532 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:31,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:31,532 INFO L85 PathProgramCache]: Analyzing trace with hash 972462257, now seen corresponding path program 1 times [2022-04-06 13:55:31,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:31,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457180151] [2022-04-06 13:55:31,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:31,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:31,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-04-06 13:55:31,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:31,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457180151] [2022-04-06 13:55:31,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457180151] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:31,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:31,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:31,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3325997] [2022-04-06 13:55:31,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:31,783 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:31,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:31,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:31,784 INFO L87 Difference]: Start difference. First operand 6393 states and 9331 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:33,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:35,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:37,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:39,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:39,800 INFO L93 Difference]: Finished difference Result 13071 states and 19017 transitions. [2022-04-06 13:55:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-04-06 13:55:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:39,814 INFO L225 Difference]: With dead ends: 13071 [2022-04-06 13:55:39,814 INFO L226 Difference]: Without dead ends: 6706 [2022-04-06 13:55:39,822 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:39,823 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 47 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:39,823 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 627 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 532 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-04-06 13:55:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2022-04-06 13:55:39,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6401. [2022-04-06 13:55:39,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4595059412132583) internal successors, (9335), 6396 states have internal predecessors, (9335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:39,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9339 transitions. [2022-04-06 13:55:39,960 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9339 transitions. Word has length 428 [2022-04-06 13:55:39,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:39,961 INFO L478 AbstractCegarLoop]: Abstraction has 6401 states and 9339 transitions. [2022-04-06 13:55:39,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:39,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9339 transitions. [2022-04-06 13:55:39,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-04-06 13:55:39,994 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:39,995 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:39,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 13:55:39,995 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:39,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1597716625, now seen corresponding path program 1 times [2022-04-06 13:55:39,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:39,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402192123] [2022-04-06 13:55:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:39,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1114 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-04-06 13:55:40,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:40,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402192123] [2022-04-06 13:55:40,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402192123] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:40,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:40,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232857132] [2022-04-06 13:55:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:40,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:40,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:40,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:40,206 INFO L87 Difference]: Start difference. First operand 6401 states and 9339 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:42,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:43,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:45,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:45,043 INFO L93 Difference]: Finished difference Result 13079 states and 19017 transitions. [2022-04-06 13:55:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:45,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 470 [2022-04-06 13:55:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:45,056 INFO L225 Difference]: With dead ends: 13079 [2022-04-06 13:55:45,056 INFO L226 Difference]: Without dead ends: 6706 [2022-04-06 13:55:45,067 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:45,067 INFO L913 BasicCegarLoop]: 255 mSDtfsCounter, 66 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:45,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 625 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 13:55:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2022-04-06 13:55:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6401. [2022-04-06 13:55:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4576297686053783) internal successors, (9323), 6396 states have internal predecessors, (9323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:45,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9327 transitions. [2022-04-06 13:55:45,226 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9327 transitions. Word has length 470 [2022-04-06 13:55:45,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:45,227 INFO L478 AbstractCegarLoop]: Abstraction has 6401 states and 9327 transitions. [2022-04-06 13:55:45,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:45,227 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9327 transitions. [2022-04-06 13:55:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-04-06 13:55:45,237 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:45,237 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:45,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 13:55:45,238 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:45,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash -872562479, now seen corresponding path program 1 times [2022-04-06 13:55:45,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:45,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352078067] [2022-04-06 13:55:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:45,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:45,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1127 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-04-06 13:55:45,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352078067] [2022-04-06 13:55:45,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352078067] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:45,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:45,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:45,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715239445] [2022-04-06 13:55:45,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:45,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:45,474 INFO L87 Difference]: Start difference. First operand 6401 states and 9327 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:46,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:48,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:49,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:52,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:52,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:52,588 INFO L93 Difference]: Finished difference Result 13031 states and 18927 transitions. [2022-04-06 13:55:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:55:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 472 [2022-04-06 13:55:52,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:52,595 INFO L225 Difference]: With dead ends: 13031 [2022-04-06 13:55:52,595 INFO L226 Difference]: Without dead ends: 6658 [2022-04-06 13:55:52,602 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:55:52,602 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 60 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:52,603 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 617 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-04-06 13:55:52,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2022-04-06 13:55:52,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 6401. [2022-04-06 13:55:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4557535959974985) internal successors, (9311), 6396 states have internal predecessors, (9311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9315 transitions. [2022-04-06 13:55:52,768 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9315 transitions. Word has length 472 [2022-04-06 13:55:52,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:52,768 INFO L478 AbstractCegarLoop]: Abstraction has 6401 states and 9315 transitions. [2022-04-06 13:55:52,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9315 transitions. [2022-04-06 13:55:52,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-04-06 13:55:52,777 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:52,777 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:52,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 13:55:52,777 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:52,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash -128117199, now seen corresponding path program 1 times [2022-04-06 13:55:52,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:52,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126508854] [2022-04-06 13:55:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1238 proven. 46 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2022-04-06 13:55:53,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:53,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126508854] [2022-04-06 13:55:53,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126508854] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:55:53,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485417985] [2022-04-06 13:55:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:53,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:55:53,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:55:53,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 13:55:53,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 13:55:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:54,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-06 13:55:54,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:55:54,164 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:55:54,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 13:55:54,237 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:55:54,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 13:55:54,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 13:55:54,496 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:55:54,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 13:55:54,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 13:55:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1233 proven. 126 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-04-06 13:55:54,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:55:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1254 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-04-06 13:55:55,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485417985] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:55:55,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:55:55,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-06 13:55:55,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961763069] [2022-04-06 13:55:55,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:55,489 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:55,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 13:55:55,489 INFO L87 Difference]: Start difference. First operand 6401 states and 9315 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:57,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:57,896 INFO L93 Difference]: Finished difference Result 13483 states and 19567 transitions. [2022-04-06 13:55:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 472 [2022-04-06 13:55:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:57,904 INFO L225 Difference]: With dead ends: 13483 [2022-04-06 13:55:57,904 INFO L226 Difference]: Without dead ends: 7110 [2022-04-06 13:55:57,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 13:55:57,911 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 104 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:57,912 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 489 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:55:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2022-04-06 13:55:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 6408. [2022-04-06 13:55:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6408 states, 6403 states have (on average 1.454005934718101) internal successors, (9310), 6403 states have internal predecessors, (9310), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6408 states to 6408 states and 9314 transitions. [2022-04-06 13:55:58,067 INFO L78 Accepts]: Start accepts. Automaton has 6408 states and 9314 transitions. Word has length 472 [2022-04-06 13:55:58,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:58,067 INFO L478 AbstractCegarLoop]: Abstraction has 6408 states and 9314 transitions. [2022-04-06 13:55:58,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:58,067 INFO L276 IsEmpty]: Start isEmpty. Operand 6408 states and 9314 transitions. [2022-04-06 13:55:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-04-06 13:55:58,078 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:58,079 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:58,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-06 13:55:58,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-04-06 13:55:58,294 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:58,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1834067689, now seen corresponding path program 1 times [2022-04-06 13:55:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:58,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507949997] [2022-04-06 13:55:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:58,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:58,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1185 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-04-06 13:55:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507949997] [2022-04-06 13:55:58,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507949997] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:58,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:58,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719417344] [2022-04-06 13:55:58,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:58,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:58,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:58,564 INFO L87 Difference]: Start difference. First operand 6408 states and 9314 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:02,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:04,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:04,978 INFO L93 Difference]: Finished difference Result 13258 states and 19258 transitions. [2022-04-06 13:56:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-04-06 13:56:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:04,985 INFO L225 Difference]: With dead ends: 13258 [2022-04-06 13:56:04,985 INFO L226 Difference]: Without dead ends: 6878 [2022-04-06 13:56:04,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:04,991 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 27 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:04,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 591 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 440 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:56:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6878 states. [2022-04-06 13:56:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6878 to 6720. [2022-04-06 13:56:05,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6720 states, 6715 states have (on average 1.4525688756515265) internal successors, (9754), 6715 states have internal predecessors, (9754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6720 states to 6720 states and 9758 transitions. [2022-04-06 13:56:05,119 INFO L78 Accepts]: Start accepts. Automaton has 6720 states and 9758 transitions. Word has length 474 [2022-04-06 13:56:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:05,120 INFO L478 AbstractCegarLoop]: Abstraction has 6720 states and 9758 transitions. [2022-04-06 13:56:05,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 6720 states and 9758 transitions. [2022-04-06 13:56:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-04-06 13:56:05,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:05,131 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:05,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-06 13:56:05,131 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash 895560963, now seen corresponding path program 1 times [2022-04-06 13:56:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:05,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939378068] [2022-04-06 13:56:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:05,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1059 proven. 854 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-04-06 13:56:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939378068] [2022-04-06 13:56:05,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939378068] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572601092] [2022-04-06 13:56:05,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:05,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:05,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:56:05,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 13:56:05,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 13:56:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:06,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 37 conjunts are in the unsatisfiable core [2022-04-06 13:56:06,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:56:07,000 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:07,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 13:56:07,064 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:56:07,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 13:56:07,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 13:56:07,285 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:56:07,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 13:56:07,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 13:56:07,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-06 13:56:07,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 13:56:07,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-04-06 13:56:07,421 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-06 13:56:07,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-04-06 13:56:07,496 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-04-06 13:56:07,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-04-06 13:56:07,580 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:07,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-04-06 13:56:07,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 13:56:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1304 proven. 142 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2022-04-06 13:56:07,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:56:08,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-04-06 13:56:08,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 108 [2022-04-06 13:56:08,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 106 [2022-04-06 13:56:08,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 100 [2022-04-06 13:56:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1329 proven. 0 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2022-04-06 13:56:08,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572601092] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:08,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:56:08,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 9] total 19 [2022-04-06 13:56:08,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452600382] [2022-04-06 13:56:08,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:08,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:08,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:08,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:08,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-04-06 13:56:08,459 INFO L87 Difference]: Start difference. First operand 6720 states and 9758 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:08,728 INFO L93 Difference]: Finished difference Result 14204 states and 20684 transitions. [2022-04-06 13:56:08,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:08,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-04-06 13:56:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:08,737 INFO L225 Difference]: With dead ends: 14204 [2022-04-06 13:56:08,737 INFO L226 Difference]: Without dead ends: 7512 [2022-04-06 13:56:08,746 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 976 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-04-06 13:56:08,747 INFO L913 BasicCegarLoop]: 286 mSDtfsCounter, 205 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:08,747 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 685 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 125 Unchecked, 0.1s Time] [2022-04-06 13:56:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2022-04-06 13:56:08,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 7151. [2022-04-06 13:56:08,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 7146 states have (on average 1.464735516372796) internal successors, (10467), 7146 states have internal predecessors, (10467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 10471 transitions. [2022-04-06 13:56:08,917 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 10471 transitions. Word has length 484 [2022-04-06 13:56:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:08,917 INFO L478 AbstractCegarLoop]: Abstraction has 7151 states and 10471 transitions. [2022-04-06 13:56:08,918 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 10471 transitions. [2022-04-06 13:56:08,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-04-06 13:56:08,928 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:08,928 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:08,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 13:56:09,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:09,139 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:09,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1405695153, now seen corresponding path program 1 times [2022-04-06 13:56:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:09,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973932614] [2022-04-06 13:56:09,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:09,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 1210 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-04-06 13:56:09,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:09,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973932614] [2022-04-06 13:56:09,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973932614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:09,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:09,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:09,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489508850] [2022-04-06 13:56:09,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:09,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:09,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:09,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:09,350 INFO L87 Difference]: Start difference. First operand 7151 states and 10471 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:11,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:11,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:11,908 INFO L93 Difference]: Finished difference Result 14528 states and 21272 transitions. [2022-04-06 13:56:11,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:11,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-04-06 13:56:11,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:11,919 INFO L225 Difference]: With dead ends: 14528 [2022-04-06 13:56:11,919 INFO L226 Difference]: Without dead ends: 7405 [2022-04-06 13:56:11,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:11,929 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:11,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 576 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:56:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7405 states. [2022-04-06 13:56:12,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7405 to 7151. [2022-04-06 13:56:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 7146 states have (on average 1.4630562552476911) internal successors, (10455), 7146 states have internal predecessors, (10455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 10459 transitions. [2022-04-06 13:56:12,069 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 10459 transitions. Word has length 484 [2022-04-06 13:56:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:12,070 INFO L478 AbstractCegarLoop]: Abstraction has 7151 states and 10459 transitions. [2022-04-06 13:56:12,070 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 10459 transitions. [2022-04-06 13:56:12,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-04-06 13:56:12,078 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:12,078 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:12,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 13:56:12,078 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:12,079 INFO L85 PathProgramCache]: Analyzing trace with hash -894388527, now seen corresponding path program 1 times [2022-04-06 13:56:12,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:12,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368193861] [2022-04-06 13:56:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:12,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 1280 proven. 0 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2022-04-06 13:56:12,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:12,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368193861] [2022-04-06 13:56:12,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368193861] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:12,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:12,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864409809] [2022-04-06 13:56:12,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:12,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:12,354 INFO L87 Difference]: Start difference. First operand 7151 states and 10459 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:14,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:16,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:18,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:20,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:20,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:20,889 INFO L93 Difference]: Finished difference Result 14876 states and 21728 transitions. [2022-04-06 13:56:20,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:20,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-04-06 13:56:20,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:20,900 INFO L225 Difference]: With dead ends: 14876 [2022-04-06 13:56:20,900 INFO L226 Difference]: Without dead ends: 7753 [2022-04-06 13:56:20,908 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:20,935 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 32 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:20,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 597 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 478 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-04-06 13:56:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2022-04-06 13:56:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 7535. [2022-04-06 13:56:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7535 states, 7530 states have (on average 1.4617529880478088) internal successors, (11007), 7530 states have internal predecessors, (11007), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7535 states to 7535 states and 11011 transitions. [2022-04-06 13:56:21,161 INFO L78 Accepts]: Start accepts. Automaton has 7535 states and 11011 transitions. Word has length 484 [2022-04-06 13:56:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:21,162 INFO L478 AbstractCegarLoop]: Abstraction has 7535 states and 11011 transitions. [2022-04-06 13:56:21,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7535 states and 11011 transitions. [2022-04-06 13:56:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-04-06 13:56:21,173 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:21,173 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:21,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-06 13:56:21,173 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1692367487, now seen corresponding path program 1 times [2022-04-06 13:56:21,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:21,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426281669] [2022-04-06 13:56:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:21,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2136 trivial. 0 not checked. [2022-04-06 13:56:21,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426281669] [2022-04-06 13:56:21,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426281669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:21,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:21,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 13:56:21,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90450076] [2022-04-06 13:56:21,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:21,903 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 13:56:21,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:21,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 13:56:21,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 13:56:21,904 INFO L87 Difference]: Start difference. First operand 7535 states and 11011 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:23,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:25,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:27,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:29,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:30,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:31,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:31,305 INFO L93 Difference]: Finished difference Result 15063 states and 22014 transitions. [2022-04-06 13:56:31,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 13:56:31,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-04-06 13:56:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:31,316 INFO L225 Difference]: With dead ends: 15063 [2022-04-06 13:56:31,316 INFO L226 Difference]: Without dead ends: 7535 [2022-04-06 13:56:31,325 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-06 13:56:31,325 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 7 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:31,325 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 851 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-04-06 13:56:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7535 states. [2022-04-06 13:56:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7535 to 7535. [2022-04-06 13:56:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7535 states, 7530 states have (on average 1.4616201859229747) internal successors, (11006), 7530 states have internal predecessors, (11006), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7535 states to 7535 states and 11010 transitions. [2022-04-06 13:56:31,497 INFO L78 Accepts]: Start accepts. Automaton has 7535 states and 11010 transitions. Word has length 484 [2022-04-06 13:56:31,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:31,498 INFO L478 AbstractCegarLoop]: Abstraction has 7535 states and 11010 transitions. [2022-04-06 13:56:31,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7535 states and 11010 transitions. [2022-04-06 13:56:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-04-06 13:56:31,507 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:31,508 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:31,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 13:56:31,508 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:31,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1612048672, now seen corresponding path program 1 times [2022-04-06 13:56:31,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:31,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032416929] [2022-04-06 13:56:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1082 proven. 225 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2022-04-06 13:56:32,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:32,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032416929] [2022-04-06 13:56:32,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032416929] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:32,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249981786] [2022-04-06 13:56:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:32,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:32,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:56:32,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 13:56:32,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 13:56:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:33,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 99 conjunts are in the unsatisfiable core [2022-04-06 13:56:33,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:56:33,878 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:33,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 13:56:33,985 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 13:56:33,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-06 13:56:34,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 13:56:34,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 13:56:34,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:34,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 13:56:34,354 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 13:56:34,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 13:56:34,364 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:34,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-04-06 13:56:34,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:34,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-06 13:56:34,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:34,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-06 13:56:34,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:34,961 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 13:56:34,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 13:56:35,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:35,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 13:56:35,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:35,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 13:56:35,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:35,033 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 13:56:35,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 13:56:35,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:35,689 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 13:56:35,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 13:56:35,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:35,734 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 13:56:35,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 13:56:35,788 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-06 13:56:35,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-04-06 13:56:37,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,220 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-06 13:56:37,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 270 [2022-04-06 13:56:37,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:37,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 225 [2022-04-06 13:56:37,258 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-04-06 13:56:37,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 273 treesize of output 225 [2022-04-06 13:56:40,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 182 [2022-04-06 13:56:40,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 182 [2022-04-06 13:56:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,037 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 13:56:40,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 240 [2022-04-06 13:56:40,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 109 [2022-04-06 13:56:40,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 69 [2022-04-06 13:56:40,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:40,298 INFO L356 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2022-04-06 13:56:40,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 59 [2022-04-06 13:56:40,355 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 13:56:40,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 13:56:40,488 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:56:40,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 13:56:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 991 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-04-06 13:56:40,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:56:43,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 13:56:43,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 13:56:43,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-04-06 13:56:43,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 13:56:43,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 13:56:43,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 13:56:43,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:43,878 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-04-06 13:56:43,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 1 [2022-04-06 13:56:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1133 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-04-06 13:56:44,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249981786] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 13:56:44,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 13:56:44,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 13] total 38 [2022-04-06 13:56:44,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627959764] [2022-04-06 13:56:44,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 13:56:44,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-04-06 13:56:44,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:44,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-04-06 13:56:44,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1179, Unknown=0, NotChecked=0, Total=1406 [2022-04-06 13:56:44,157 INFO L87 Difference]: Start difference. First operand 7535 states and 11010 transitions. Second operand has 38 states, 38 states have (on average 13.947368421052632) internal successors, (530), 37 states have internal predecessors, (530), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:46,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:48,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:50,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:53,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:55,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:57,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:59,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:13,498 INFO L93 Difference]: Finished difference Result 46680 states and 66695 transitions. [2022-04-06 13:57:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-04-06 13:57:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 13.947368421052632) internal successors, (530), 37 states have internal predecessors, (530), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-04-06 13:57:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:13,545 INFO L225 Difference]: With dead ends: 46680 [2022-04-06 13:57:13,545 INFO L226 Difference]: Without dead ends: 39173 [2022-04-06 13:57:13,558 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1174 GetRequests, 1028 SyntacticMatches, 8 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7090 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2610, Invalid=16850, Unknown=0, NotChecked=0, Total=19460 [2022-04-06 13:57:13,559 INFO L913 BasicCegarLoop]: 499 mSDtfsCounter, 2805 mSDsluCounter, 8800 mSDsCounter, 0 mSdLazyCounter, 9201 mSolverCounterSat, 508 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2805 SdHoareTripleChecker+Valid, 9299 SdHoareTripleChecker+Invalid, 12067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 9201 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 2352 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:13,559 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2805 Valid, 9299 Invalid, 12067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 9201 Invalid, 6 Unknown, 2352 Unchecked, 23.9s Time] [2022-04-06 13:57:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39173 states. [2022-04-06 13:57:14,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39173 to 22515. [2022-04-06 13:57:14,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22515 states, 22510 states have (on average 1.4478898267436695) internal successors, (32592), 22510 states have internal predecessors, (32592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22515 states to 22515 states and 32596 transitions. [2022-04-06 13:57:14,229 INFO L78 Accepts]: Start accepts. Automaton has 22515 states and 32596 transitions. Word has length 484 [2022-04-06 13:57:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:14,229 INFO L478 AbstractCegarLoop]: Abstraction has 22515 states and 32596 transitions. [2022-04-06 13:57:14,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 13.947368421052632) internal successors, (530), 37 states have internal predecessors, (530), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 22515 states and 32596 transitions. [2022-04-06 13:57:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-04-06 13:57:14,256 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:14,256 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:14,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 13:57:14,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:57:14,457 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:14,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:14,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1972581287, now seen corresponding path program 1 times [2022-04-06 13:57:14,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:14,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84388895] [2022-04-06 13:57:14,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1052 proven. 261 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2022-04-06 13:57:15,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:15,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84388895] [2022-04-06 13:57:15,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84388895] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:57:15,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577915297] [2022-04-06 13:57:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:15,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:57:15,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:57:15,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 13:57:15,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 13:57:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:16,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 192 conjunts are in the unsatisfiable core [2022-04-06 13:57:16,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:57:16,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:16,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 13:57:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:16,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:16,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:16,992 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 13:57:16,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 38 [2022-04-06 13:57:16,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 13:57:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,031 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 13:57:17,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-04-06 13:57:17,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 13:57:17,204 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-04-06 13:57:17,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-04-06 13:57:17,221 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-04-06 13:57:17,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-04-06 13:57:17,237 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-04-06 13:57:17,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-04-06 13:57:17,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-04-06 13:57:17,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-04-06 13:57:17,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-04-06 13:57:17,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-04-06 13:57:17,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-04-06 13:57:17,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-04-06 13:57:17,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,850 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 13:57:17,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-04-06 13:57:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,884 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 13:57:17,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-04-06 13:57:17,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:17,916 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-04-06 13:57:17,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-04-06 13:57:18,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-04-06 13:57:18,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-04-06 13:57:18,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:18,163 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-04-06 13:57:18,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 231 [2022-04-06 13:57:20,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 226 [2022-04-06 13:57:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,875 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-04-06 13:57:20,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 262 treesize of output 260 [2022-04-06 13:57:20,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:20,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 242 [2022-04-06 13:57:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,544 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-04-06 13:57:24,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 260 treesize of output 260 [2022-04-06 13:57:24,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-04-06 13:57:24,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:24,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-04-06 13:57:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:25,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:25,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-04-06 13:57:25,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:25,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:25,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:25,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-04-06 13:57:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 127 [2022-04-06 13:57:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,294 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-04-06 13:57:26,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 110 [2022-04-06 13:57:26,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 108 [2022-04-06 13:57:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:26,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 110 [2022-04-06 13:57:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-04-06 13:57:28,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-04-06 13:57:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,894 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-04-06 13:57:28,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 195 treesize of output 162 [2022-04-06 13:57:28,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:28,929 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-04-06 13:57:28,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 176 [2022-04-06 13:57:28,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-04-06 13:57:29,073 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-04-06 13:57:29,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-04-06 13:57:29,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:29,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:29,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:29,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 159 [2022-04-06 13:57:29,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:29,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:29,094 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 13:57:29,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 159 [2022-04-06 13:57:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:31,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:31,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:31,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 184 [2022-04-06 13:57:31,272 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-04-06 13:57:31,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2022-04-06 13:57:31,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:57:31,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 159 [2022-04-06 13:57:34,340 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-04-06 13:57:34,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 10 [2022-04-06 13:57:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1148 proven. 851 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-04-06 13:57:34,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:57:37,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 514 treesize of output 440 [2022-04-06 14:05:07,039 WARN L232 SmtUtils]: Spent 41.17s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)